Examples of using RVM
RVM version
$ rvm -v rvm 1.8.6 by Wayne E. Seguin (wayneeseguin@gmail.com) [https://rvm.beginrescueend.com/]
Use a particular Ruby.
$ rvm use 1.8.6
Equivalently (because of RVM's defaults):
$ rvm 1.8.6
List Ruby interpreters available for installation
$ rvm list known # MRI Rubies [ruby-]1.8.6[-p399] [ruby-]1.8.6-head [ruby-]1.8.7[-p330] [ruby-]1.8.7-head [ruby-]1.9.1-p243 [ruby-]1.9.1[-p378] [ruby-]1.9.1-p429 [ruby-]1.9.1-head [ruby-]1.9.2-preview1 [ruby-]1.9.2-preview3 [ruby-]1.9.2-rc1 [ruby-]1.9.2-rc2 [ruby-]1.9.2[-p136] [ruby-]1.9.2-head ruby-head # GoRuby goruby # JRuby jruby-1.2.0 jruby-1.3.1 jruby-1.4.0 ... (plus many more; omitted for brevity)
List Ruby interpreters you've already installed
$ rvm list ruby-1.8.6-p383: ruby 1.8.6 (2009-08-04 patchlevel 383) [i686-darwin10.0.0] ruby-1.9.1-head: ruby 1.9.2dev (2009-10-30 trunk 25559) [x86_64-darwin10.0.0] => ruby-1.9.1-p243: ruby 1.9.1p243 (2009-07-16 revision 24175) [i686-darwin10] ruby-1.9.1-p25443: ruby 1.9.1p281 (2009-08-09 revision 24476) [i386-darwin10.0.0] ruby-1.9.1-r25271: ruby 1.9.1p281 (2009-08-09 revision 24476) [i386-darwin10.0.0] ruby-1.9.2-preview1: ruby 1.9.2dev (2009-07-18 trunk 24186) [i386-darwin10.0.0] ree-1.8.6-20090610: ruby 1.8.6 (2008-08-11 patchlevel 287) [i686-darwin10.0.0] Ruby Enterprise Edition 20090610 ree-1.8.7-2009.10: ruby 1.8.7 (2009-06-12 patchlevel 174) [x86_64-darwin10.0.0], MBARI 0x6770, Ruby Enterprise Edition 2009.10 ree-1.8.7-head: ruby 1.8.7 (2009-06-12 patchlevel 174) [i686-darwin10.0.0] jruby-1.3.1: jruby 1.3.1 (ruby 1.8.6p287) (2009-06-15 2fd6c3d) (Java HotSpot(TM) 64-Bit Server VM 1.6.0_15) [x86_64-java] jruby-1.4.0: jruby 1.4.0 (ruby 1.8.7 patchlevel 174) (2009-11-02 69fbfa3) (Java HotSpot(TM) 64-Bit Server VM 1.6.0_15) [x86_64-java] jruby-head: jruby 1.5.0.dev (ruby 1.8.7 patchlevel 174) (2009-11-02 55366a1) (Java HotSpot(TM) 64-Bit Server VM 1.6.0_15) [x86_64-java] macruby-head: MacRuby version 0.5 (ruby 1.9.0) [universal-darwin10.0, x86_64] macruby-nightly: MacRuby version 0.5 (ruby 1.9.0) [universal-darwin10.0, x86_64] => (default) ruby-1.9.1-p243: ruby 1.9.1p243 (2009-07-16 revision 24175) [i686-darwin10] system: ruby 1.8.7 (2008-08-11 patchlevel 72) [universal-darwin10.0]
Ruby information for the current shell
$ rvm info rvm 0.0.49 (2009.09.24) [http://rvm.beginrescueend.com/] ruby: interpreter: "ruby" version: "1.8.6" date: "2009-08-04" platform: "i686-darwin10.0.0" patchlevel: "2009-08-04 patchlevel 383" full_version: "ruby 1.8.6 (2009-08-04 patchlevel 383) [i686-darwin10.0.0]" homes: gem: "/Users/wayne/.rvm/gems/ruby/1.8.6" ruby: "/Users/wayne/.rvm/ruby-1.8.6-p383" binaries: ruby: "/Users/wayne/.rvm/ruby-1.8.6-p383/bin/ruby" irb: "/Users/wayne/.rvm/ruby-1.8.6-p383/bin/irb" gem: "/Users/wayne/.rvm/ruby-1.8.6-p383/bin/gem" rake: "/Users/wayne/.rvm/ruby-1.8.6-p383/bin/rake" environment: GEM_HOME: "/Users/wayne/.rvm/gems/ruby/1.8.6" MY_RUBY_HOME: "/Users/wayne/.rvm/ruby-1.8.6-p383" IRBRC: "/Users/wayne/.rvm/ruby-1.8.6-p383/.irbrc"
Install JRuby (default version is 1.3.1), but do not use it right now.
$ rvm install jruby
Use Ruby 1.9.1
$ rvm use 1.9.1
Equivalent to "rvm use 1.9.1", due to defaults
$ rvm 1.9.1
Use Ruby 1.8.6
$ rvm 1.8.6
Switch to gems directory for current ruby
$ rvm gemdir /Users/wayne/.gem/ruby/1.9.1
Switch to the system gems directory
$ rvm gemdir system /Library/Ruby/Gems/1.8
Switch to the system user gems directory
$ rvm gemdir system user /Users/wayne/.gem/ruby/1.8
Switch to gems directory for ruby jruby (1.3.1)
$ rvm gemdir jruby /Users/wayne/.gem/jruby/1.8
Use the user set default ruby
$ rvm default
Use the system ruby (as if no rvm)
$ rvm system
Reset to pre-RVM state.
$ rvm reset
Uninstall RVM installed 1.8.7 version
$ rvm uninstall 1.8.7
Install gems from system gem dir (osx: /Library/Ruby/Gems/1.8) using current ruby
$ rvm system ; rvm gemset export system.gems ; rvm 1.8.7 ; rvm gemset import system
